Follow these simple steps:
Login to vomo.org and open your Admin Dashboard.
In the menu on the left, select "Opportunities" and click on your published Opportunity under the Active section.
In the top right hand corner of the Opportunity Dashboard, click the "Edit Opportunity" button.
Scroll to the bottom of the page and you will see a red "Delete" button on the bottom right hand corner of the Opportunity Edit page.
This cannot be undone, so be careful! Your Opportunity will now be permanently deleted.